Final answer:
Approximately two-thirds of patients who experience a TIA are likely to soon after experience a stroke.
Step-by-step explanation:
Approximately two-thirds of patients who experience a TIA (transient ischemic attack) are likely to soon after experience a stroke. A TIA is a temporary blockage of blood flow to the brain which resolves within 24 hours, whereas a stroke lasts longer and causes permanent brain damage. It is important to seek medical attention and take preventive measures to reduce the risk of experiencing a stroke after a TIA.